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[73.185.129.58]) by smtp.gmail.com with ESMTPSA id m6sm7485292ilb.39.2020.07.03.14.23.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 03 Jul 2020 14:23:37 -0700 (PDT) From: Alex Elder To: davem@davemloft.net, kuba@kernel.org Cc: evgreen@chromium.org, subashab@codeaurora.org, cpratapa@codeaurora.org, bjorn.andersson@linaro.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next 0/2] net: ipa: fix HOLB timer register use Date: Fri, 3 Jul 2020 16:23:33 -0500 Message-Id: <20200703212335.465355-1-elder@linaro.org> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org The function ipa_reg_init_hol_block_timer_val() generates the value to write into the HOL_BLOCK_TIMER endpoint configuration register, to represent a given timeout value (in microseconds). It only supports a timer value of 0 though, in part because that's sufficient, but mainly because there was some confusion about how the register is formatted in newer hardware. I got clarification about the register format, so this series fixes ipa_reg_init_hol_block_timer_val() to work for any supported delay value. The delay is based on the IPA core clock, so determining the value to write for a given period requires access to the current core clock rate. So the first patch just creates a new function to provide that. -Alex Alex Elder (2): net: ipa: introduce ipa_clock_rate() net: ipa: fix HOLB timer calculation drivers/net/ipa/ipa_clock.c | 6 +++ drivers/net/ipa/ipa_clock.h | 8 ++++ drivers/net/ipa/ipa_endpoint.c | 78 +++++++++++++++++++--------------- 3 files changed, 57 insertions(+), 35 deletions(-) -- 2.25.1